package shoppersservlets;

import infraestructura.PersistenceManager;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import modelo.Validador;

@WebServlet(name = "Buscar", urlPatterns = {"/buscar"})
public class Buscar extends HttpServlet {

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            String aBuscar = request.getParameter("opcion");
            if (Validador.esEntradaNoValida(aBuscar)) {
                request.getRequestDispatcher("./").forward(request, response);
            } else {
                //@Abraham potencial XSS
                out.println(aBuscar);
                PersistenceManager mang = PersistenceManager.getPersistenceManager(getServletContext().getInitParameter("persistenceMethod"));
                if (mang.existsProduct(aBuscar)) {
                    request.setAttribute("product", mang.getProduct(mang.getTheIdOfTheProduct(aBuscar)));
                } else {
                    request.setAttribute("product", null);
                }
                request.getRequestDispatcher("./WEB-INF/buscar.jsp").forward(request, response);
            }

        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
